Clean Water Act discharge permit · NPDES AZI107283
U.S. ARMY YUMA PROVING GROUND, Yuma, AZ: NPDES AZI107283 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 20Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
U.S. ARMY YUMA PROVING GROUND, held by Usag Yuma Proving Ground, holds NPDES permit AZI107283. EPA’s file records it issued January 16, 2025 and expiring January 15, 2030. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | U.S. ARMY YUMA PROVING GROUND |
|---|---|
| Permittee as filed | Usag Yuma Proving Ground |
| NPDES ID | AZI107283 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | January 16, 2025 |
| Expiration date | January 15, 2030 |
| Address | Yuma, AZ 85365 |
| Subwatershed | Doc Carter Spring (HUC 150702011404) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 20Pollutants on file
- 20Under a numeric limit
- 1With a violation of any kind
- 0With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| pH | 6 | 3 | 0 | ||
| Solids, total suspended | 9 | 0 | 0 | ||
| Cadmium, total [as Cd] | 6 | 0 | 0 | ||
| Lead, total [as Pb] | 6 | 0 | 0 | ||
| Zinc, total [as Zn] | 6 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 3 | 0 | 0 | ||
| Cyanide, total [as CN] | 3 | 0 | 0 | ||
| Arsenic, total [as As] | 3 | 0 | 0 | ||
| Chromium, total dry weight [as Cr] | 3 | 0 | 0 | ||
| Copper, total [as Cu] | 3 | 0 | 0 | ||
| Iron, total [as Fe] | 3 | 0 | 0 | ||
| Selenium, total [as Se] | 3 | 0 | 0 | ||
| Phenol | 3 | 0 | 0 | ||
| Naphthalene | 3 | 0 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 3 | 0 | 0 | ||
| .alpha.-Terpineol | 3 | 0 | 0 | ||
| Mercury, total [as Hg] | 3 | 0 | 0 | ||
| Pyridine | 3 | 0 | 0 | ||
| Aniline | 3 | 0 | 0 | ||
| Benzoic acids, total | 3 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES AZI107283.
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES AZI107283.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, AZI107283.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID AZI107283 there.
Nearby on the register
- Discharge permits in Yuma
- Every permit record in Yuma, A to Z
- Discharge permits in Arizona
- Every permit record in Arizona, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.